rekeying locks

https://ace-wiki.win/index.php/Why_a_Trusted_Mobile_Locksmith_Near_You_Makes_All_the_Difference

Rekeying locks is a practical solution when you need to change which keys work in your locks without replacing the entire hardware. A locksmith adjusts the internal pins and springs to match a new key, making old keys useless. This is perfect after moving into a new home, losing a key, or when you want extra security without the expense of new locks.